旋挖桩在大厚度块石回填土中的施工技术与应用

The Construction Technology and Application of Rotary Digging Pile in the Large Thickness Block Stone Backfill

在大厚度块石回填土中施工旋挖桩,采用塌方后灌注细石混凝土固结土层的施工技术,能安全有效解决塌孔或旋挖桩施工无法顺利成孔等问题。应用该施工技术,工程质量好,施工方便,成本低,具有很好的经济效益、社会效益和推广价值。

When the rotary drilling pile is constructed in the thick stone backfill, the perfusion technique of the fine aggregate concrete consolidation soil is used after collapse, can safely and effectively solve hole collapse or auger piles not successfully pore-forming and any other issues. The application of the construction technology has good quality, convenient construction, low cost, with good economic, social and promotional value.